Package org.apache.wicket.util.collections

Class MultiMap<K,​V>

  • Type Parameters:
    K -
    V -
    All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map<K,​java.util.List<V>>
    public class MultiMap<K,​V>
extends java.util.HashMap<K,​java.util.List<V>>
    A simple multimap
    Author:
    igor
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.util.AbstractMap

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>

      • Nested classes/interfaces inherited from interface java.util.Map

        java.util.Map.Entry<K extends java.lang.Object,​V extends java.lang.Object>

    • Constructor Summary

      Constructors 
      Constructor Description
      MultiMap()
      Constructor
      MultiMap​(int initialCapacity)
      Constructor
      MultiMap​(int initialCapacity, float loadFactor)
      Constructor
      MultiMap​(java.util.Map<? extends K,​? extends java.util.List<V>> m)
      Constructor

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addValue​(K key, V value)
      Adds value to the specified key
      V getFirstValue​(K key)
      Gets the first value in the value list
      void removeValue​(K key, V value)
      Removes value from the specified key
      void replaceValues​(K key, V value)
      Replaces all existing values with the specified value.

      • Methods inherited from class java.util.HashMap

        clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

      • Methods inherited from class java.util.AbstractMap

        equals, hashCode, toString

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map

        equals, hashCode

    • Constructor Detail

      • MultiMap

        public MultiMap()
        Constructor
        See Also:
        HashMap()

      • MultiMap

        public MultiMap​(int initialCapacity,
                float loadFactor)
        Constructor
        Parameters:
        initialCapacity -
        loadFactor -
        See Also:
        HashMap(int, float)

      • MultiMap

        public MultiMap​(int initialCapacity)
        Constructor
        Parameters:
        initialCapacity -
        See Also:
        HashMap(int)

      • MultiMap

        public MultiMap​(java.util.Map<? extends K,​? extends java.util.List<V>> m)
        Constructor
        Parameters:
        m -
        See Also:
        HashMap(Map)

    • Method Detail

      • addValue

        public void addValue​(K key,
                     V value)
        Adds value to the specified key
        Parameters:
        key -
        value -

      • removeValue

        public void removeValue​(K key,
                        V value)
        Removes value from the specified key
        Parameters:
        key -
        value -

      • replaceValues

        public void replaceValues​(K key,
                          V value)
        Replaces all existing values with the specified value. If no values exist for the key the value will be added.
        Parameters:
        key -
        value -

      • getFirstValue

        public V getFirstValue​(K key)
        Gets the first value in the value list
        Parameters:
        key -
        Returns:
        first value